enable IPO/LTO in cmake - #5640
Draft
ikbuibui wants to merge 2 commits into
Draft
Conversation
As mentioned in issue ComputationalRadiationPhysics#3106 it is worth investigating how link time optimization affects the code. We can simply enable it it for all targets in cmake.
psychocoderHPC
approved these changes
Mar 4, 2026
psychocoderHPC
added
component: tools
Member
|
Note: Most likely this will not enable link time optimization for the see: https://gitlab.kitware.com/cmake/cmake/-/work_items/26764 I played with LTO for nvcc in the past, but I need to check if I can find my data again. |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
As mentioned in issue #3106 it is worth investigating how link time optimization affects the code. We can simply enable it it for all targets in CMake.
Setting it to draft to see how the CI reacts. Will require some investigation into the effects on performance (if any).